6pm, significant tree damage, house and barn. For pictures and story go HERE.

May 22

Gads Hill

strong F2

6:43pm, significant tree damage, house and barn.

May22

Winthrop

F1

Extensive damage to a farm at Winthrop (east of Seaforth)

May 24

Waterloo

F0

10:45am, (minor house damage, tree damage, etc)

Jun 09

Ern

F1

Occurred in afternoon, just west of Mallorytown, significant tree and garage damage, some houses damaged.

Jul.13

near Exeter

F0-F1

3 tornado tracks in the Exeter area, two within sight of the radar! Some F0-F1 damage to barns and a drive shed. No rain, hail, lightning at these sites...the storm cores were farther to the south apparently. Will have to look at radar. Lots of pictures and video on these, and none from chasers this time. [info by Dave Sills]

Jul.13

Elmville

F0

Minor crop damage.

Jul.13

Brinsley

F1

Barn and shed damaged.

Jul.17

north of Goderich

F0

Unique event in that the storm was moving from E to W due to the cold low. The storm hit the Huron front and quickly developed rotation at the surface. Just F0 on that one...appears to be another non-supercell tornado event [info by Dave Sills]

Aug.10

many locaitons

Many tornado warnings given throughout multiple locations this day. Nothing confirmed as of yet. If you know of confirmations please email me.

2004 St. Catharines Thunderstorm StatisticsIn the table below, click on the date if it's underlined for more info on that storm.
Dates will be red for storms with warnings, orange for storms for which a watch was issued. The time will be coloured as to the actual intensity of the storm.

Skies went black, winds picked up and it rained hard, then was followed by about 10 minutes of pea-sized hail. Damage in Niagara Falls heard on the scanner, of a large tree collapsing the front of a house. No injuries reported (thanks Mark) 75 knot wind gust (86 mph or 140 kmh) reported from Niagara Falls NY airport at 11 am (thanks Rob)In St. Catharines: Funnel clouds reported, corner of a brick roof ripped off a school, debris thrown into nearby yards, trees uprooted.
DAMAGE: Large trees crashed through walls and roofs of homes, damage to cars, shingles and roofs ripped from homes, large part of roof ripped off school, debris thrown into nearby field. Click date for pics.

Apr.19

17:45

30,000

Minimal thunder/lightning but VERY heavy downpour for about 5 minutes.

The next thunderstorm at 4pm produced pretty strong winds, rain, very close lightning/thunder, and pea-sized hail. Click date for pics.

22:40

30,000

Minimal thunder.

Jun.14

00:50

30,000

Small cell passed over quickly but it rained fairly hard.

19:00

30,000

Warning issued at 18:49 but nothing but very minimal thunder. Very dark over lake, but nothing happening here. Heavy rain at the end. Moderate winds, but not strong. Storm last until about 20:24. False warning. Reports of funnel clouds in various areas across province.

Jun.24

20:50

35,000

Moderate/strong winds, very close lightning/thunder.

Jul.04

18:07

???

I was up north during this one and missed it. The front page of Monday's newspaper showed a large tree fallen and crushing a car. Any info on it from someone in the area would be much appreciated.

Jul.14

15:30

???

Missed this one - was up north. Warning given by EC: A SQUALL LINE OF STRONG TO SEVERE THUNDERSTORMS CONTINUES TO MOVE EASTWARD ACROSS COTTAGE COUNTRY. A FEW STRONG TO SEVERE THUNDERSTORMS HAVE ALSO FORMED OVER THE NIAGARA PENINSULA. THESE STORMS MAY CONTAIN WIND GUSTS OF 90 KM/H INTENSE LIGHTNING ANDTORRENTIAL DOWNPOURS REDUCING VISIBILITIES TO NEAR ZERO. HAIL IS ALSO POSSIBLE.

Jul.30

15:00

30,000

Minimal thunder, very heavy rain at times. Didn't last long.

Jul.31

02:00

30,000

Still continuous rain since the day before, minimal thunder. Got stronger around 2:20am.

I went down to the lake to get some lightning shots on this one because it was one of the FEW non-rain thunderstorms but but the time I get my tripod ready and got down there it had already moved towards Toronto.

Aug.03

05:00

???

Slept through so it couldn't have been too strong.

Aug.28

23:00

50,000

Moderate rain, light winds, frequent lightning.

Aug.29

03:45

35,000

Light rain and lightning.

Oct.30

02:25

40,000

Thunder, rain.

Nov.25

00:10

35,000

Bright flash of lightning followed by a BOOM that rattled the windows. It was the only flash during this heavy rainstorm but at least November didn't go by without at least ONE thunderstorm.

Hottest Day in 2004June 9th: 32C (90F) with humidity: 42C (108F) - in the shade.

Storm Deaths of 2004: 1

June 1

Landsdowne

man killed during microburst in severe storm from fallen tree a few kms west of the tornado track

Thunderstorms by Month
Before only a colour was used to designate a severe thunderstorm warning, but many times a warning was issued accompanied by only a weak storm. So in previous years I've kept records it was hard to tell if the storm was in fact severe just by looking at the table. An "X" will be placed into the box for thunderstorms if a warning was issued by Environment Canada but no severe t-storm actually occurred, and a "T" into the box if a tornado warning was issued without a tornado actually occurring. Warnings are defined as "imminent (ie: they WILL occur) or already occurring". For notes about a storm or a storm watch/warning, a number "eg: 01" will be placed in the box - see the note for that number at the bottom of the table. Or see the table above for more info and links.